5661650115 has 160 divisors (see below), whose sum is σ = 11746563840. Its totient is φ = 2580076800.

The previous prime is 5661650051. The next prime is 5661650117. The reversal of 5661650115 is 5110561665.

It is not a de Polignac number, because 5661650115 - 2⁶ = 5661650051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5661650115.

It is not an unprimeable number, because it can be changed into a prime (5661650117) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 17859937 + ... + 17860253.

It is an arithmetic number, because the mean of its divisors is an integer number (73416024).

Almost surely, 2^5661650115 is an apocalyptic number.

5661650115 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5661650115 is an abundant number, since it is smaller than the sum of its proper divisors (6084913725).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5661650115 is a wasteful number, since it uses less digits than its factorization.

5661650115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 566 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 5661650115 is about 75243.9373969757. The cubic root of 5661650115 is about 1782.3008283748.

The spelling of 5661650115 in words is "five billion, six hundred sixty-one million, six hundred fifty thousand, one hundred fifteen".